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Product Name: | Rhubarb Plant Extract | Active ingredient: | Rhein (chrysophanic acid) |
Latin Name: | Radix et Rhizoma Rhei L. | Specification: | 98% |
Part Used: | Root | Type of extraction: | Alcohol&Water |
CAS: | 481-43-3 | Molecular Formula: | C15H8O6 |
Test Method: | HPLC | Molecular Weight: | 284.21 |
ITERMS | SPECIFICATION | METHOD |
Identification | Positive | TLC |
Appearance | Brown Powder | Visual |
Odor & Taste | Characteristic, light | Organoleptic test |
Loss on drying (5g) | NMT 5% | USP34-NF29<731> |
Ash (2g) | NMT 5% | USP34-NF29<281> |
Total heavy metals | NMT 10.0ppm | USP34-NF29<231> |
Arsenic (As) | NMT 2.0ppm | ICP-MS |
Cadmium(Cd) | NMT 1.0ppm | ICP-MS |
Lead (Pb) | NMT 1.0ppm | ICP-MS |
Mercury (Hg) | NMT 0.3ppm | ICP-MS |
Solvent residues | USP & EP | USP34-NF29<467> |
Pesticides Residues | ||
666 | NMT 0.2ppm | GB/T5009.19-1996 |
DDT | NMT 0.2ppm | GB/T5009.19-1996 |
Total heavy metals | NMT 10.0ppm | USP34-NF29<231> |
Arsenic (As) | NMT 2.0ppm | ICP-MS |
Cadmium(Cd) | NMT 1.0ppm | ICP-MS |
Lead (Pb) | NMT 1.0ppm | ICP-MS |
Mercury (Hg) | NMT 0.3ppm | ICP-MS |
Microbiological | ||
Total Plate Count | 1000cfu/g Max. | GB 4789.2 |
Yeast & Mould | 100cfu/g Max | GB 4789.15 |
E.Coli | Negative | GB 4789.3 |
Staphylococcus | Negative | GB 29921 |